Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2021   18:49:14   (   0.12,-128.34) (  -0.60,-124.82)  399.92                80
 04/03/2021   07:10:38   (  -0.12,-128.25) (  -0.50,-130.01)  200.80                80
 04/05/2021   06:55:46   (  -0.11,-128.21) (   0.14,-127.06)  131.12                80
 04/05/2021   19:17:00   (   0.11,-128.28) (   0.97,-132.22)  447.91                80
 04/07/2021   06:43:33   (  -0.11,-128.18) (   0.73,-124.10)  463.03                80
 04/07/2021   19:04:49   (   0.10,-128.25) (   0.32,-129.27)  115.83                80
 04/09/2021   18:55:17   (   0.11,-128.21) (  -0.33,-126.32)  216.30                80
 04/10/2021   07:16:39   (  -0.10,-128.13) (  -0.83,-131.50)  383.43                80
 04/12/2021   07:04:27   (  -0.10,-128.09) (  -0.17,-128.55)   51.72                80
 04/14/2021   06:49:35   (  -0.10,-128.05) (   0.42,-125.59)  279.56                80
 04/14/2021   19:10:50   (   0.09,-128.11) (   0.63,-130.76)  300.76                80